Abstract
ABSTRACTA series of dissymmetric gemini imidazolium surfactants with different spacer length ([CmCsCnim]Br2, m + n = 24, m = 12, 14, 16, 18; s = 2, 4, 6) were synthesized and characterized by 1H NMR and ESI-MS spectroscopy. Their adsorption and thermodynamic properties were investigated by the surface tension and electrical conductivity methods. Consequently, the surface activity parameters (cmc, γcmc, πcmc, pC20, cmc/C20, Γmax, Amin) and thermodynamic parameters (ΔGmθ, ΔHmθ, ΔSmθ) were obtained. The effects of the dissymmetry (m/n) and the spacer length (s) on the surface activity and micellization process of surfactants have been discussed in detail.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.